New Guinea Impatiens plant named ‘Duetamarreflam’

ABSTRACT

A new and distinct cultivar of  Impatiens  plant named ‘Duetamarreflam’ characterized by its upright, outwardly spreading and mounding plant habit; moderately vigorous growth habit; medium in size; freely branching habit; dark green-colored leaves; freely and early flowering habit; large dark red-colored flowers; and good garden performance.

Botanical designation: Impatiens hawkeri.

Cultivar denomination: ‘DUETAMARREFLAM’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of New Guinea Impatiens plant, botanically known as Impatiens hawkeri and hereinafter referred to by the name ‘Duetamarreflam’.

The new Impatiens plant is a product of a planned breeding program conducted by the Inventor in Rheinberg, Germany. The objective of the breeding program is to create new medium-sized and early-flowering New Guinea Impatiens plants with large attractive flowers.

The new Impatiens plant originated from a cross-pollination made by the Inventor in July, 2011 in Rheinberg, Germany of a proprietary selection of Impatiens hawkeri identified as code number NN09-003175-003, not patented, as the female, or seed, parent with a proprietary selection of Impatiens hawkeri identified as code number NN07-005945-008, not patented, as the male, or pollen, parent. The new Impatiens plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Rheinberg, Germany in May, 2016.

Asexual reproduction of the new Impatiens plant by terminal cuttings in a controlled greenhouse environment in Rheinberg, Germany since June, 2016 has shown that the unique features of this new Impatiens plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Impatiens have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylight and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Duetamarreflam’. These characteristics in combination distinguish ‘Duetamarreflam’ as a new and distinct Impatiens plant:

-   -   1. Upright, outwardly spreading and mounding plant habit.     -   2. Moderately vigorous growth habit; medium in size.     -   3. Freely branching habit.     -   4. Dark green-colored leaves.     -   5. Freely and early flowering habit.     -   6. Large dark red-colored flowers.     -   7. Good garden performance.

Plants of the new Impatiens can be compared to plants of the female parent selection. Plants of the new Impatiens differ primarily from plants of the female parent selection in flower size as plants of the new Impatiens have larger flowers than plants of the female parent selection.

Plants of the new Impatiens can be compared to plants of the male parent selection. Plants of the new Impatiens differ primarily from plants of the male parent selection in flower color as plants of the male parent selection have orange-colored flowers. In addition, plants of the new Impatiens flower earlier than plants of the male parent selection.

Plants of the new Impatiens can be compared to plants of Impatiens hawkeri ‘KLENI05085’, not patented. In side-by-side comparisons, plants of the new Impatiens differ primarily from plants of ‘KLENI05085’ in the following characteristics:

-   -   1. Plants of the new Impatiens are larger than plants of         ‘KLENI05085’.     -   2. Plants of the new Impatiens are more freely branching than         plants of ‘KLENI05085’.     -   3. Plants of the new Impatiens have thicker lateral branches         than plants of ‘KLENI05085’.     -   4. Plants of the new Impatiens are more freely flowering than         plants of ‘KLENI05085’.     -   5. Plants of the new Impatiens and ‘KLENI05085’ differ in flower         color as plants of ‘KLENI05085’ have lighter red-colored         flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Impatiens plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Impatiens plant.

The photograph comprises a side perspective view of a typical flowering plant of ‘Duetamarreflam’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurements and values describe plants grown during the summer in 22-cm containers in a glass-covered greenhouse in Rheinberg, Germany and under cultural practices typical of commercial New Guinea Impatiens production. During the production of the plants, day and night temperatures averaged 18° C. and light levels averaged 4,500 lux. Plants were 13 weeks old when the photograph and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Impatiens hawkeri ‘Duetamarreflam’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Impatiens             hawkeri identified as code number NN09-003175-003, not             patented.         -   Male, or pollen, parent.—Proprietary selection of Impatiens             hawkeri identified as code number NN07-005945-008, not             patented. -   Propagation:     -   -   Type.—By terminal cuttings.         -   Time to initiate roots, summer.—About five days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About seven days at             temperatures about 20° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures about 20° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures about 20° C.         -   Root description.—Fine, fibrous; white in color.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Upright to outwardly spreading and             mounding plant habit; medium in size; freely branching habit             with about 17 lateral branches developing per plant;             moderately vigorous growth habit.         -   Plant height.—About 39 cm.         -   Plant diameter.—About 58 cm. -   Lateral branch description:     -   -   Length.—About 25 cm to 30 cm.         -   Diameter.—About 8 mm to 13 mm.         -   Internode length.—About 4.1 cm.         -   Strength.—Strong.         -   Aspect.—Initially upright to outwardly spreading.         -   Texture.—Smooth, glabrous.         -   Color, when developing.—Close to 187A.         -   Color, fully developed.—Close to 152B. -   Leaf description:     -   -   Arrangement.—Opposite or in whorls; simple.         -   Length.—About 7.5 cm.         -   Width.—About 2.9 cm.         -   Shape.—Ovate.         -   Apex.—Apiculate.         -   Base.—Obtuse.         -   Margin.—Serrulate with ciliation.         -   Texture, upper and lower surfaces.—Smooth, glabrous;             leathery.         -   Venation pattern.—Pinnate; arcuate.         -   Color.—Developing leaves, upper surface: Close to 137C.             Developing leaves, lower surface: Close to 59A. Fully             expanded leaves, upper surface: Close to 147A; venation,             close to 60A. Fully expanded leaves, lower surface: Close to             59A; venation, close to 59A.         -   Petioles.—Length: About 1.1 cm. Diameter: About 3 mm.             Texture, upper and lower surfaces: Smooth, glabrous;             leathery. Color, upper and lower surfaces: Close to 60A. -   Flower description:     -   -   Flower type and flowering habit.—Large single rounded and             flat axillary flowers; freely flowering habit, typically             about eight to ten open flowers and flower buds per lateral             branch and about 150 to 200 flowers potentially developing             per plant; flowers positioned above and beyond the foliar             plane, flowers typically face mostly upright to outwardly.         -   Flower longevity.—Flowers typically last about one to two             days on the plant under greenhouse conditions; petals             self-cleaning, gynoecium persistent.         -   Fragrance.—None detected.         -   Natural flowering season.—Year-round under greenhouse             conditions; in the garden, flowering from spring until fall             in Germany; early flowering habit, plants typically begin             flowering about eight weeks after planting.         -   Flower buds.—Length: About 1.2 cm. Diameter: About 9.2 mm.             Shape: Ovate. Texture: Smooth, glabrous. Color: Close to             60A.         -   Flower diameter.—About 6.2 cm.         -   Flower depth.—About 3 cm.         -   Petals.—Quantity and arrangement: Five per flower in a             single whorl. Length: About 2.7 cm. Width: About 3.4 cm.             Shape: Obcordate. Apex: Cordate; rounded. Base: Acute.             Margin: Entire. Texture, upper and lower surfaces: Smooth,             glabrous; satiny. Color: When opening, upper surface: Close             to 45A; towards the base of the banner petal, close to 74A.             When opening, lower surface: Close to 50A. Fully opened,             upper surface: Close to 45B; towards the base of the banner             petal, close to 74B; color becoming closer to 46B with             development. Fully opened, lower surface: Close to 58C;             color becoming closer to 50A with development.         -   Sepals.—Quantity and arrangement: Three in a single whorl;             one modified into an elongated spur. Length: About 1.4 cm.             Width: About 6.8 mm. Shape: Ovate. Apex: Apiculate. Base:             Obtuse. Margin: Entire. Texture, upper and lower surfaces:             Smooth, glabrous; leathery. Color: When opening, upper             surface: Close to 147C. When opening, lower surface: Close             to 60A. Fully opened, upper surface: Close to 74B. Fully             opened, lower surface: Close to 61C. Spur length: About             4.8 cm. Spur diameter: At the flower, about 3.6 mm. Spur             texture: Smooth, glabrous. Spur color: Close to 59A.         -   Peduncles.—Length: About 4.9 cm. Diameter: About 2 mm.             Angle: Upright to outward. Strength: Moderately strong;             flexible. Texture: Smooth, glabrous. Color: Close to N34A.         -   Reproductive organs.—Stamens: Quantity: Five fused at             anthers; filaments free. Filament length: About 1.3 mm.             Filament color: Close to 61A. Anther length: About 3.1 mm.             Anther shape: Oval. Anther color: Close to 44A. Pollen             amount: Abundant. Pollen color: Close to NN155D. Pistils:             Quantity per flower: One. Pistil length: About 4.9 mm.             Stigma shape: Crested. Stigma color: Close to 61B. Style             length: About 1 mm. Style color: Close to 61B. Ovary color:             Close to N144C.         -   Seeds and fruits.—Seed and fruit production has not been             observed on plants of the new Impatiens. -   Disease & pest resistance: Plants of the new Impatiens have not been     observed to be resistant to pathogens and pests common to Impatiens     plants. -   Garden performance: Plants of the new Impatiens have been observed     to have good garden performance and tolerate temperatures ranging     from about 5° C. to about 40° C. 

It is claimed:
 1. A new and distinct Impatiens plant named ‘Duetamarreflam’ as illustrated and described. 